DE2437213A1 - Gas electrofilter with wet separation - having lime and chlorine in the wash liquor and additional steam injection - Google Patents

Gas electrofilter with wet separation - having lime and chlorine in the wash liquor and additional steam injection

Info

Publication number
DE2437213A1
DE2437213A1 DE2437213A DE2437213A DE2437213A1 DE 2437213 A1 DE2437213 A1 DE 2437213A1 DE 2437213 A DE2437213 A DE 2437213A DE 2437213 A DE2437213 A DE 2437213A DE 2437213 A1 DE2437213 A1 DE 2437213A1
Authority
DE
Germany
Prior art keywords
gas
electrofilter
lime
wet separation
chlorine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE2437213A
Other languages
German (de)
Inventor
Heinz Gresch
Heinz Hoelter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE2437213A priority Critical patent/DE2437213A1/en
Publication of DE2437213A1 publication Critical patent/DE2437213A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/68—Halogens or halogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/16—Plant or installations having external electricity supply wet type

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

Electrofilter for gas cleaning with wet separation has the degree of dissociation in the gas impurity improved and also its tendency to agglomerate, by the injection of a condensible vapour, esp. water. This is done before or into the electric part of the separator. The gas to be dissociated can also have other chemical additives injected. For use in conjunction with DT 2425324 where gaseous impurities (e.g. SO2, HCl) are removed using an electrical separator to dissociate the gases and then washing with a lime soln. (calcium hydroxide) to which chloride ions have been added. The use of steam (or other condensable vapour) improves the dissociation and thus increases either the efficiency of the unit or its capacity.

Description

Beschreibung und Er1äute:?.lug zur g satz - Patentanmeldung "Naßelektrofilter mit Wasserwaschung, wobei das Waschwasser mit Kalziumhydroxyd und Chlorionen angereichert ist und der Filter zusätzlich mit kondensierendem Gas beaufschlagt wird." Zusatzanmeldung zur Patentanmeldung P 24 25 324.5 In der Hauptanmeldung wird ein Elektrofilter beschrieben, der vorzugsweise zur Auswaschung von gasförmigen Schadstoffen, z.B. S02 und HC1, mit einer Kalziumhydroxyd-Lösung, die mit Chlorionen angereichert ist, zur Waschung benutzt wird.Description and explanations:?. Lug zur g sentence - patent application "wet electrostatic precipitator with water washing, the washing water being enriched with calcium hydroxide and chlorine ions and the filter is additionally charged with condensing gas. "Additional registration to patent application P 24 25 324.5 The main application describes an electrostatic precipitator, which is preferably used for washing out gaseous pollutants, e.g. S02 and HC1, with a calcium hydroxide solution enriched with chlorine ions for washing is used.

Erfindungsgemäß wird vorgeschlagen, die Intensivität des Elektrofilters dadurch zu verbessern, daß zur Verbesserung des Dissoziationsgrades der gasförmigen Schadstoffmoleküle die aktive Wasserbenetzungsfläche dadurch verbessert wird, daß neben der mechanischen Wasserversprühung durch Einführung von Wasserdampf das Filter unter hydrodynamische Rücknebel gesetzt wird. Dadurch wird gewährleistet, daß die aktive Benetzungsfläche .in einem Umfange vergrößert wird, wie es durch die mechanische Wasserversprühung nicht erzielt werden kann.According to the invention it is proposed to increase the intensity of the electrostatic precipitator to improve by that to improve the degree of dissociation of the gaseous Pollutant molecules the active water wetting surface is improved in that In addition to mechanical water spraying through the introduction of water vapor, the filter is placed under hydrodynamic back mist. This ensures that the active wetting surface. is enlarged to the extent that it is due to the mechanical Water spray cannot be achieved.

Selbstverständlich ist die Erdindung nicht auf die vorstehend im einzelnen dargestellten und beschriebenen Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, neben der mechanischen Zerstäubung von Wasser zusätzlich kondensierendes Gas, vorzugsweise Wasserdampf, hinzuzubringen.Of course, the earth connection is not limited to the above in detail Forms of training shown and described are limited, but there are numerous Changes possible without deviating from the basic idea, Next the mechanical atomization of water additionally condensing gas, preferably Water vapor to be added.

Patentansprüche:Patent claims:

Claims (1)

Patentansprüche: ================ Ansprüche 1 : Naßelektrofilter mit Wassereinsprühung dadurch gekennzeichnetnet, daß zur Verbesserung des Dissoziationsgrades und der Agglomeration kondensierenden Gases vorzugsweise Wasserdampf zugeführt wird.Claims: ================ Claims 1: wet electrostatic precipitator with Water spray characterized in that to improve the degree of dissociation and the agglomeration of condensing gas is preferably supplied with water vapor. Anspruch 2: Mach Anspruch 1 dadurch gekennzeichnet, daß das Einbringen von kondensierendem Gas, wie z.B. Wasserdampf, vor und/oder im elektrischen Teil des Elektrofilters durchgeführt wird.Claim 2: Mach claim 1, characterized in that the introduction of condensing gas, such as water vapor, in front of and / or in the electrical part of the electrostatic precipitator. Ansprüche 3 : Verfahren nach Anspruch 1 - 2 dadurch gekennzeichnet daß das dissozierte Gas mit chemischen Zusätzen zusätzlich Egeimpft werden kann0Claims 3: Method according to claims 1-2, characterized that the dissociated gas can also be vaccinated with chemical additives0
DE2437213A 1974-08-02 1974-08-02 Gas electrofilter with wet separation - having lime and chlorine in the wash liquor and additional steam injection Ceased DE2437213A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2437213A DE2437213A1 (en) 1974-08-02 1974-08-02 Gas electrofilter with wet separation - having lime and chlorine in the wash liquor and additional steam injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2437213A DE2437213A1 (en) 1974-08-02 1974-08-02 Gas electrofilter with wet separation - having lime and chlorine in the wash liquor and additional steam injection

Publications (1)

Publication Number Publication Date
DE2437213A1 true DE2437213A1 (en) 1976-02-12

Family

ID=5922228

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2437213A Ceased DE2437213A1 (en) 1974-08-02 1974-08-02 Gas electrofilter with wet separation - having lime and chlorine in the wash liquor and additional steam injection

Country Status (1)

Country Link
DE (1) DE2437213A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288064A1 (en) * 1987-04-23 1988-10-26 Thomas F. Burger Circulating air washer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0288064A1 (en) * 1987-04-23 1988-10-26 Thomas F. Burger Circulating air washer

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: B03C 3/16

8131 Rejection